Cannot find this mark anywhere

[Timax56]

A P and B with either a bee or moth in between, any ideas?

[Zilver2]

Hello,

The mark belongs to Paul Bour, active at 146 quai des Orfèvres, Paris during the period 1856-1873.
N° de garantie : 6142
N° de préfecture : 6329
Symbol : a bumblebee (un bourdon).

[blakstone]

Paul Antoine Gaëtan Bour

Born: 4 Jul 1826, Paris, 5th arrondissement, son of Nicholas Bour & Marie Antoinette Josseaume
Died: 16 Sep 1902, Vincennes, Seine [now Val-de-Marne]

He married three times:
1st: 24 May 1851, Paris, 9th arrondissement, to Julie Louise Chéron (c. 1826-1880), daughter of François Julien Chéron & Zélie Constant Rahault
2nd: 19 Nov 1881, Vincennes, Val-de-Marne, to Marie Anoinette Joffroy (1829-1895) daughter of Joseph Joffroy & Charlotte Antoinette Josseaume
3rd: 3 Oct 1895, Paris, 15th arrondissement, to Marie Eugénie Caroline Michallet (b.1852), widow of Gaston Bruant, daughter of Jean François Michallet & Elizabeth Lämmel

[Timax56]

Many thanks guys